Well, Jim. It is a combination of how much you eat, the type of food you eat, and when you eat your meals.
That’s a big mistake, you should always have a good breakfast. You will not run your car without fuel, and yet you expect your body to work without food.
I bet you eat a large evening meal, then sit and watch TV or read a book. Then instead of burning off your energy, your body stores it as fat.
Way to control is really using common sense when you plan your eating habits.